The chainsaw's last stand? Finding commercial uses for the disappearing rainforests seems to be the only way of saving them.

Charlie Pye-Smith goes to Indonesia to test the theory and to see whether conservation and market forces can make perfect bedfellows.

Fly over East Kalimantan, in Indonesia, and you witness the processes that are destroying, worldwide, an area of tropical forest the size of Greece each year. Much is being cleared to make way for agriculture, for crops such as palm oil and rice. Great swathes are being felled for timber and pulpwood, and even in areas protected as national parks, illegal logging is rampant. Another 10 years of this and there will be precious little left.